Tube mandrel chucking device



April 5', 1932. A.. G. SMITH '1,852,827

TUBE MANDREVL GHUCKING DEVICE ATTORNEYS April 5, 1932. AA. G. SMITH TUBEMANDREL CHUCKING DEVICE 5 Sheets-Sheet 2 Filed Dec. 27, 1928 ATTORNEYSApril 5, 1932 A. c;` SMITH TUBE MANDREL CHUCKING DEVICE 5 Sheets-Shet 3Filed Dec. 27, 1928 ATTORNEYS' A. G. SMITH TUBE MANDREL CHUCKING DEVICEFiled Deo. 27,' 1928 5 Sheets-Sheet 4 5 Y E N R O 1. T A

April 5, 1932.

April 5, 1932. A. G. SMITH T'UBE MANDREL CHUCKING DEVICE 5 Sheets-Sheet5 Filed Dec. 27, 1928 ATTORNEYS f .ALBERT 330mg y1.0111311, QASSIGNQRSLB,MESNEASSIQNMENT TIDLTBE Y :mmm RUBBER.CQMPANLLMQ12FWlLmNGTQmDELAWAREACOREORATIONOF,

f DELAWARE y @punition illeafpecembezz, kam/s.` fserialgfm.. 3285701,

My said invention relatesfhojimpnovemrens in rtube mandrel @buckingewp-ayla'mlsfor Shaving :applied atlleretoga, ffaibnc- Wmpping.

HeTetoore, =so' far i as I zamawsure, hasbeenfcustomary#Coplaoefthemandels Gallery ngthefuncured tube-fStoek,;fndifd1mllfy on; Thisrequired:stantngandetpping the' :all

` invention-includesfthefnovehfeatunesmi:0am

YStrutron and :arrangement nd .mmbinatn jacent-pt@ and e f-Fgg im;detailfplaai-viwofith mmm-1 refs With-the pick upmember shownid'ethed emandrel actuating parts hereinafter described. Above the shaft 8 islocated a turretcar'rying shaft 16 journaled in suitable bearings 14 and15 in the main frame, to which shaft 16 are keyed the turrets or frames17 andk 17 f Oneof'these turrets17k i rhas fast thereto a spur gear ring18 which entail undue torsional strain byk driving bothv n turrets fromgearing at one endV only`.f

guides or recesses 17 a, Fig. 5, (three eing meshes with and is drivenby pinion orl gear y13 on the shaft 8. Obviously the other turret 17fcouldbe similarlygeared toy sha-ft Sif the'length of the machine wassuchk'as to Theturrets 17 and 17 and mechanism carried thereby beingidentical, a descripvtion in the singular will apply to both. Eachturret is provided with aplurality yof radially arranged andequi-distantly s aced shown asa convenient number), adapted to receivethe ends of the poles or ymandi-els,

the' turrets beingf'provided a'djacent'these y recesses with -mandrelpick up hooks y19 adapted tov pick up the mandrels inthe ymanneryhereinafter' described. l

yNear thebottoms of these recesses are located stud shafts 20 (Fig. 5)rigidly ailixed to the turrets, on which .are vjournaled rubfber' facedrollers 21, 21', whichproject beyond the wall or walls of the recessandlserve as" mandrel lsupporting and driving rollers and which I term forconvenience, cradle rollers.` 'l 'f *f' VThe driving of theserollersisefected by mounting them on sleeves 22 whichy carry sprocketsv22a,-all of the sprockets offeacli turretfbeingdriven by afsprocketrchain-23 .'Fig. 1 which in turn is driven by af'central sprocket k24journaled on shafts 16, as shown in Figs. 3 vand 4.

pressing themandrels against-thefdriving cradelrollers 21,21", withsufficient, force to ensure their; rotation by frictional contactagainstthe resistance offered bythey tension 1 on .the tape, and alsothat the recesses shall befuno'bstructed at the mandrel receiw'fingandVdischarge points. y

kTo accomplish this7 vI prvidl the follow- *ingmechanism:` l y H l, Eachturretalso carries'vadjacent eaclrre- `f"cessand on opposite sidesthereof studs'i26 n fand 27 (Figs. 5to 9)V on which areffulcrumedfrespectivelylever arms'28 and 29 which-car#v 'y itat ,theirr free`ends; rubber covered roll- V ers301and31, designed, .when the arms areswungy inwardtoengage the mandrels and ypress them against the drivingorY cradle roll- Vers, while when swung outward, they leave`v therecesses free and unobstructed.

Lever arm 28 has rigidly connected to its supporting shaft a lever arm32,Figs. 3 and 5, the two arms constituting a bell crank lever, and saidlever arm 32 is provided with ay roller y33cooperating with a stationarycam 34. An adjustable link 35 connects lever arm 32 with lever arm 29,fast onv the shaft carrying lever arm 29, and a tension spring 40,attached at one lend to lever arm 32 and at the other end to turret 17,acts to cause the leverl arms'28 and 29 to be swung towardsy each otherfor causing ,the rollersfcarried thereby to press the mandrel endsagainst the driving or Vcradle rollers. The stationary cam 34, on whichroller'33 bears has a concentric raised part 34rdV terminating in in-ywardly deflected cam 'faces a and a', these respective parts being soarranged that when a pair of recesses 17 a have reached a position wherethey are over the rails orreceivingf runway43, the rollerf33 rides'upthe cam face'aand the grippingrolls aref swung out clearfof therecessesto allow the wrapped lnandrelsvtoroll out ontov and down thereceiving rails 43, Fig.y 1,' and onto table 43a fromwhich they may beremoved as desired.

Asthe turrets continue to rotate, the grip- Y ping or pressure rollersare held open and when thepiclrV up devices or hooks 19 reachthefsupporting rails 41, they engagethe ends of 'the' foremost rmandrelas shown in Fig. 1. Further rotation of thefturrets'ina clockwisedirection,'Fig. 1, brings the recesses towards an vupright positionwhereupon the mandrels drop intoithe recesses and rest on the cradlefrolls.v *e l ff Further movement of the turretcauses the rollers 33 toleave the high lpartf13a of the .cam and move inward along face a whichpermits the springs 40 to Vswingthe-lever's 28 and 29 inward -to pressthe rollers 30 andy 31 n against the mandrel and the `lattery against nuthevr driving rollers as rshown at the topof Figselrand 5, -whereby themandrel is rotated -y"The-parts are so'arranged that the rollers 33travel clear ofthefcam when passing down fon the right hand sidethereofasshown in lFign3.A n, f

n is intended that fhetndsaof ,thrapies shall be applied when-*themandrelskreach approximately the rposition above shaftl andY the(ywinding vbe performed while the -mandrel is passing `down in front'o`and inward away from the operators aslthey stand f y in'frontxof themachine which would'be on the "right of Fig.` 1, the speed of rotationof the mandrels relative -to their orbital movement n being ysuch thatthere is ample time' for` the f V Winding of the tapes while themandrels are l travelingfrom gripping position to'thedischarge'postion.v l i "l1-.sae

a wsenwdajmpra ingressi-astmapf the tubel and alsol to prevent/anyair''romenf y #any eWrapping. The i present? 'machine-fisthereforeQdesignedso itliat -vvl'iilesonecperator operating upon onemandrel Yat a time. 'iT l1*aveonI1d:Y htliajfivvh-15'ff'come'#experiencedgit-eis'nct necessaryl'fto-y 'stop y :fersta-'retire machine/fl "lilleoperators`are-able i s *to starti'theends-f the' Ytape"simn'ltsnieonsly,

eivliixle'i'the inabili-nef r l n 'K with operatorscwhoarelesslsliillfnlorwvho necessaryfor thenrto stop the machines when theyl start theends'of their tape. y. My preferred form of starting and stopping meanscomprsesatreadle board eX- v machinefand carriedby depending levers i6artlculated 4to the. main frame at 46a, the

board being urged. towards .theroperators or glit,-Fig.- vl,{loy springmeans indicated in readiness :fory Winding. y A y y yOfcourseyeven whenthe operators are n Ymay arise which 'necessitatefstoppingby;one f orthe other operators, and the yarrangement kshown permits eithertostopfthe rdevice at will Without moving fromghis position.

It is desirable 4to 4keep the unwrappedtnbes 1 separate fromreachfrclier While on tlie'rails or runways ll andto thisfend, lprovid-eescapement levers 42 which are-si1nply 'two armed levers havingtheiranterior arms .42a heavierthan Vtheir posterior arms 42?), so thatrsaid'arms 426 vtend to stand npwardin T65 positionv to'hold theynext'sncceeding mandrel turning. Hon/fever,

' tending across the front'othe. baise of the ved, the reverse open' Voperators` would hadv his tape Vsut'iiciently skilledtofoperatelwhilethe ina-kry y chine 1s lnvcontlnuous movement,.occasions-f f thevpatliy 'of tlieinandrelsf yVJhenfthefirst .mandrelTOUS `down tlief'runway, `it succesf sively depressesgall the arms .425nntilitv' y ,Y reaches the' position :adjacent the turretsf i whereitVWill Ahold fsaid rarm 425 depressed vzmdtlie correspondingarm 2delevated-in Y l y Y itl-remlltopss,themandrels-against'tlle `cradle ises? ' f bviously-,fthelvai 'ons ffturfrets; fandg cradle",

be Sarrangedso as ,to -contact :with #the VI nn covered ends of themardrels or polesjsovas noty to? dama"A p parts, yrunway rails, A fand'presser-rolls; Weill'd se? the-rubberSatama-4eme it; freefgforrpjl-,hpplcatibnpf therwmpping rmedintegra'l f segmental 9m adapted tof bebolted f or riveted to f yinvention', what he class defscriloedcom-`pacedrotatalo'leY turrets, 1` y carriedbylsaidfturretsf ceding'Imandrelstor l'sai'd cradle; @j

Irollsnneans@for 'pressing the @Inandr'e ends having `mandrel iiendlfreceiv-in jirietsandfofrot j-'forjfeedi g roller vpresser meansvfor pressing thehin'am pdreseagainst the' Cradlerllswthime operatingl'saidroller pressen means.

hara'cter des tatableturforati-lei gffineans :for *.{pressing theVmandrels there# cagar-rist,@andmeans fiforrotatm o fands driving?'saidc'radlef rolls.

starai? Y' said :necessesy fswin'ging Y `arnls 1 adjacent@ 'said,irecesses, presser rollersjc arlried by' sai'd arms, 1 landmeansfiforflswingingsaldQarmsftojcanse..'

fthem top'ress the mandrels i again/st the cradlerollslor to be movedfromfalinenint rvwaitin-the;recesses accordingjto"the-directionr Y irlbed 'co1n. f

, of :movement of the: arms. f

' E5. f ipparatus otithe" class fdesc V- prisingapairiof; spacedrotatabletnrretshav- .fing mandrel Y cansa: saidturretsand wingingarmsaad-jacent Afsaidk e'cessesg presse n n and means forfswmglngfsaidarmes-to cau g receiving recesses, rotatable`V` Y adfle roll adjacentthe-inner ends'ofvsaidj ansV for, feeding mand reis-"ftey s ff-45 -fpresser means for cooperating with the manrolls@A or to be moved fromalinement with 'the Vrecesses according to the direction yof movement ofthe arms, comprising allever arm operatively connected withjsaidkswing-A Aingpariiis', and a` stationary cani'ffcooperating y withsaid'leveiarm.

; vApparatus, for tlie'purp'ose described Y comprisingya pair ,ofvspaced rotatable turrets! 'eachy having a plurality of radially arg vrano'ed mandrel receiving recessesrotatable cradle rolls adjacent theinnerends of the recessesy means forrotatingtlie turrets and e l cradlerolls, `means for, successively positioning mandrels with theirendpo'rtions seated in the recesses, atv one'point in the travel of ,yf-the'turrets, ymeans ataiiother point for r`e`ygV r'ceiving dischar gedmandrels, presserV means if for pressing the mandi-el ends against thecradle rolls, and means for causing said presser means to beinoved clearof the krecesses at l thefreceiving and discharge points,and to codoperate with'rtlie mandrel ends between said fnected;

y ,points. f f ,Y Y Y,

y 7; Apparatus according vto claim .6 proyvided with (starting andlstoppingrmeans andmeans for swinging said arm away fromk the presserrolls duringa portion of the rotation of thegturret ito permit entranceof ther mandrels intothe :recesses and vdischarge therefrom.

i, Y c, L470 f 11.*V Apparatus of the class describedcom?prisingirotatable. spaced turretshavinglmancries,

12.y Apparatus ofthe class describedy comi j prisingk a ypair of`rspaced rotatable turrets,

cradle rollsrotatably carried by said turrets,

means for pressing mandrels against the.

ciadlerolls, and means ,for rotating said turrets and cradle rolls, v 4n s In testimony whereof I atiix my si ature. ALBERT G. S 1TH.

capable of operation by a plurality of'opi erators from differentpositions. 8.', Apparatus according to claim 6 having starting andstopping means includingy a movable treadle boardextending the entire ylength ofthe machine andoperativelyconf 9. Apparatus for*theypurposedescribed" comprising a pair of-rotatable turrets journaled;to rotate about a common horizontal c axis, and provided with aplurality of alined "radial recesses, means for rotating said turf rets,mandrel supporting means adjacenty the yupwardly moving portions of saidturrets,

pick upy projections carried'by said turrets fk adjacent the mouths ofthe-recesses, mandrel driving rolls carried by they, turrets having .vytheir peripheries projecting within the space ,N n

dened yby the walls of the recesses, means' for `rotating said drivingrolls, anti-friction ,drels, and means for causing said presser y'meansto engage themandrels onl the downwardly moving side of the turrets andtocbe Vswung clear of the recesses on the'l'ower and n Y rising sidesfor'discharge of mandrels from s recesses and Vreplacement thereof withfresh kmandrels.`

, 10. Apparatus of the class described comprising a shaft, ay pair ofturietsfast thereon,

, f meansfor driving the shaft and turrets, said turretshaving each aplurality ofradial mandrelreceiving recesses, mandrel rotating rolls y ye positioned to engage mandrels-when located `l Y 6o -i'nsaid recesses,driving 'means connected v'to j all ofthe mandrel driving'rolls,`fleverarms j 'f c articulatedto said turrets andcarryingpre'ss-z' i Y Ycivrolls arranged to swing towards and yaways from saidfdrivingjrolls,spring means tend-v ingifto'urgek y,themtowards the .driving rolls,

